Do I remove emblems from costume Vivica for Ariel?

I think spreading the cleric emblems between them would work just fine. You can always reset if you end up needing/using one more than the other.

I’m in a non-competitive alliance and don’t aim for the top 1% of anything. There are a few classes, fighter and sorcerer for example, which merit taking talents as high as I can. For the others, survivIng long enough to fire off specials is more important to me. Emblems to 6 or 9 helps tremendously.

I would not remove any emblems from any talented 5* hero, a complete waste of resources(and money if you’re using that). Just allocate future emblems towards Ariel. I have both Vivica(17 emblems) and Ariel (20 emblems), Ariel has been my #1 healer until I got prof. Lidenbrock. See Ariel’s stats emblems out